<template>
  <div class="app-container">
    <upload-excel-component :on-success="handleSuccess" :before-upload="beforeUpload" />
    <el-table :data="tableData" border highlight-current-row style="width: 100%;margin-top:20px;">
      <el-table-column v-for="item of tableHeader" :key="item" :prop="item" :label="item" />
    </el-table>
  </div>
</template>

<script>
import UploadExcelComponent from '@/components/UploadExcel/index.vue'
import { formatExcelDate } from '@/utils'
import {importEmployee} from '@/api/employees';
export default {
  name: 'UploadExcel',
  components: { UploadExcelComponent },
  data() {
    return {
      tableData: [],
      tableHeader: []
    }
  },
  methods: {
    beforeUpload(file) {
      const isLt1M = file.size / 1024 / 1024 < 1

      if (isLt1M) {
        return true
      }

      this.$message({
        message: 'Please do not upload files larger than 1m in size.',
        type: 'warning'
      })
      return false
    },
    transZhkeyToEnkey(data) {
      // 1. 映射对象，根据映射对象找英文的键
      const mapInfo = {
        '入职日期': 'timeOfEntry',
        '手机号': 'mobile',
        '姓名': 'username',
        '转正日期': 'correctionTime',
        '工号': 'workNumber',
        '部门': 'departmentName',
        '聘用形式': 'formOfEmployment'
      }
      // 1. 需要将数据中的中文的键的数据对象一个一个的遍历出来
      return data.map(item => {
        const enObj = {}
        // 2. 根据映射对象，将中文的key转化为应为key
        Object.keys(item).forEach(zhKey => {
          const enKey = mapInfo[zhKey]
          if (enKey === 'timeOfEntry' || enKey === 'correctionTime') {
            // 传入excel时间格式，还原成标准的时间格式
            enObj[enKey] = new Date(formatExcelDate(item[zhKey]))
          } else {
            enObj[enKey] = item[zhKey]
          }
        })
        return enObj
      })
    },
 async importAddEmployee(data) {
      try {
        const res = await importEmployee(data);
        if (res.code !== 10000) return this.$message.error(res.message);
       return this.$message.success(res.message)
       this.$router.back()
      } catch (err) {
        console.log('importAddEmployee',err);
        // this.$message.error('获取数据失败')
      }
    },

    handleSuccess({ results, header }) {
      this.tableData = results
      this.tableHeader = header
        console.log(results, 'result')
      console.log(header, 'header')
      // 1. 将excel文件的数据读取转化为js代码
      // 2. 需要将js代码按照接口文档的要求进行格式化
      const data = this.transZhkeyToEnkey(results)
      console.log(data, 'data')
      // 3. 将格式化好的数据 携带上发送ajax请求，实现批量上传
      this.importAddEmployees(data)
    }
  }
}
</script>
